Extended Data Fig. 6: Current cumulative productivity-trade distribution curves.
From: Agricultural trade impacts global phosphorus use and partial productivity
Crop calorie corrected partial fertilizer-P productivity (a), partial total P productivity (b) of exporting and importing countries in 2017/19. Note: CPHE is the relative concentration of production in high-productivity countries applied to importing and exporting countries (CPHEim and CPHEex, dimensionless). CWPE is the weighted production efficacy, applied to importing and exporting countries (CWPEim and CWPEex, M kcal kg-1 P). The error bars represent the change of the maximum productivity at 98.5%, 99.0% and 99.5% contributions to the total traded products (n = 3).
